Isochron

An isochron is a line on a graph or map that connects points with the same travel time from a specific starting location. It helps visualize how long it takes to reach different places within a certain area, considering factors like distance and transportation options. For example, an isochron map might show all the locations reachable within 30 minutes by car from a city center. This tool is useful for urban planning, transportation analysis, and understanding accessibility, providing a clear picture of how quickly one can reach various destinations from a given point.